1. Three 25Ω loads are connected in STAR to a three-phase supply with a 230V phase voltage (Vp). Calculate the power dissipated by the system.
2. Simulate three 25Ω loads connected in STAR to a three-phase supply with a 230V phase voltage and measure the power dissipated using the one wattmeter method.
3. Explain why the one wattmeter method is unsuitable for an unbalanced system.
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